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Rectangular black lithium-ion camera battery with contacts on one end

Kastar

Kastar NP-FM50 NP-FM55H 7.4V 2300mAh camera battery

SKU CH-EMT8-GA3G5

7.4 V 2300 mAh lithium-ion battery replaces Sony NP-FM50 and NP-FM55H packs for Handycam and Cyber-shot models

  • Total capacity17 Wh
  • Pack contents1 Battery
  • Battery chemistryLi-Ion
  • Product typeBattery
  • Product dimensions3 × 2 × 1 in
  • Key featuresHigh Capacity and Manufacture Price.
  • Longer shooting sessions with 2300 mAh high-capacity cell
  • Safe operation via UL1642 and CE certified lithium-ion chemistry
  • Built-in protection against over-charge, over-discharge, over-voltage, over-current and over-heating
  • Replaces Sony NP-FM50, NP-FM55H and many compatible battery models
  • Fits Sony Handycam, Cyber-shot and DSLR-A100 cameras and BC-VM50 chargers

Replacement battery for Sony camcorders

This Kastar lithium-ion pack replaces the Sony NP-FM50 and NP-FM55H cells. It fits a long list of Handycam, Cyber-shot and DSLR-A100 models as well as the HVL-ML20M video light. The 7.4 V chemistry delivers 2300 mAh and 17 Wh in a single-battery pack.

Thermal behaviour and power draw

Lithium-ion cells run cool during normal recording and playback. No active cooling is required and the pack adds no audible noise. Built-in protection circuits guard against over-charge, over-discharge, over-voltage, over-current and over-heating.

Capacity decides runtime

At 2300 mAh the pack stores 17 Wh, which determines how long your camera runs between charges. Buyers who need more storage for all-day shoots should look for higher-capacity alternatives.

How it compares

Measured against everything we stock in Camera Batteries, Grips & Chargers, at today’s prices. Recalculated every night.

Price $7.99
Cheaper than about 90% of the 5,900 comparable items (median $17.99).

Specifications

Product
Brand nameKastar
Model nameNP-FM50 NP-FM55H
Part numberBA-1B-FM50-B
Total capacity17 Wh
Product typeBattery
Power
Battery chemistryLi-Ion
Size & build
Product dimensions3 × 2 × 1 in
In the box
Pack contents1 Battery

Other versions of this model

5 more in the same range

Questions about this item

How do I install the NP-FM50 NP-FM55H battery in my Sony camcorder, and what step do people often get wrong?

Slide the battery onto the camera's mount until the latch clicks; the common mistake is stopping before the latch fully engages, which leaves the battery loose and unpowered.

What maintenance will this 2300mAh lithium-ion battery need later?

Store it at roughly half charge in a cool, dry place if unused for weeks; recharge every three months to prevent deep discharge and keep the protection circuit active.

What limit appears first during continuous recording with this 17 Wh pack?

The 2300mAh capacity determines runtime; sustained high-drain recording will deplete the charge before any thermal or voltage protection triggers.

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